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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11331

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17634

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11347

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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The Phantom Thieves sent a notice! "Persona: Phantom of the Night" will be released in open beta for all platforms on April 12

Course Introduction：Awaken, your other side! Authorized by SEGA, ATLUS is deeply involved, and Perfect World Games' Black Feather Studio has created a different world urban adventure JRPG - "Persona: Phantom of the Night" (referred to as: P5X), which will be released soon. Open beta for all platforms will be launched on April 12th! The public beta PV preview video has now been released: [Real Urban Life Decided by You] In the game, players will play the role of a high school student during the day and experience the bustling urban life of Tokyo. You can take the subway to famous areas such as Shibuya and Shinjuku, where you can enjoy the dazzling street views, explore stores or take a citywalk. Taking classes, working part-time, club activities, playing baseball, watching movies, working out... it’s up to you to decide what kind of urban life you want to start. In addition, players can also encounter various interesting

2024-03-18 comment 0 773

Implementing high-concurrency online ordering system based on Workerman

Course Introduction：Introduction to a high-concurrency online ordering system based on Workerman. With the rapid development of the Internet, more and more people choose to order food online. Especially in busy urban life, online ordering brings great convenience to people. However, for food ordering platforms, how to achieve high concurrency processing has become an important challenge. This article will introduce how to build a highly concurrent online ordering system based on the Workerman framework, and illustrate it through code examples. WorkermanIntroductionWo

2023-08-10 comment 0 1497

How to implement Java switch grocery shopping system with product search function

Course Introduction：How to realize the Java switch grocery shopping system with product search function. With the continuous development and popularization of Internet technology, e-commerce plays an increasingly important role in daily life. More and more people are choosing to purchase daily necessities through e-commerce platforms instead of going to physical stores in person. Especially in busy urban life, limited time and energy make people more inclined to choose convenient electronic shopping. The Switch Food Shopping System is a common e-commerce platform where users can browse and purchase various ingredients and dishes. a good

2023-11-01 comment 0 1157

How to implement product classification and display functions in the grocery shopping system?

Course Introduction：With the development of technology, online shopping has become a part of people's lives. Especially in busy urban life, many people choose to buy ingredients and daily necessities through the grocery shopping system. The product classification and display function of the grocery shopping system is an important part of it, which can facilitate users to quickly find the products they need and achieve an efficient shopping experience. First of all, the product classification function of the grocery shopping system should be clear and clear. By classifying various products, it can make it easier and faster for users to browse products. Common product categories include vegetables, fruits, meat

2023-11-01 comment 0 762

Java develops inventory management functions in takeout systems

Course Introduction：In today's busy urban life, takeout service has become a part of people's daily life. The rise of takeout platforms allows people to enjoy a variety of food anytime and anywhere, and for takeout platforms, inventory management functions are particularly important. This article will explore the inventory management function in the takeout system from the perspective of Java development. The inventory management function refers to recording the quantity and status of goods in real time through the operation of goods in and out of the warehouse. In the takeout system, inventory management function is essential, which directly affects the execution of orders and customer satisfaction.

2023-11-01 comment 0 1597

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